The Pixel Battery Grip MB-D14 extends the battery life of your camera by giving you the option of inserting 1 EN-EL3E battery or 6 AA batteries. The battery grip also makes it easier to shoot photos vertically through the inclusion of an extra shutter button, AE/FE lock button and AF point selector on the handle. Additionally, the battery grip contains a tripod connection with a 1/4” female thread.